package day7.pm;

public class TestArray1 {
    public static void main(String[] args) {
        int[] data1 = new int[3];
        int[] data2 = new int[]{23,121,4321,21};
        int[] data3 = {12,12,312,3412};

        data1[0] = 1;
        System.out.println(data1[0]);
        System.out.println(data2.length);
        System.out.println(data3.length);
    }
}
